So I got myself a Winchester 1885 high wall traditional hunter in 38-55. I tried to find some gas check molds, but I only found a couple, the RCBS or Lyman 264grn GC. I don't have anything fancy and tumble lube my bullets with an LLA/Mineral spirits mix. Then GC them on the Less sizer. But Lee doesn't make a sizer in the cal, .358 to .401 jump. So I went with a 250grn plain base bullet mold. I guess this leaves me with two questions, what's my general velocity threshold with the plain base bullet, ACWW, and LLA, and did I handicap myself not finding a way to do a gas check in the 38-55? I'm assuming I can get 1300-1400fps and that speed will do anything I need, but some of those 1700fps loads look fun.